1. Earth's shadow on the moon (at lunar eclipse) is always circular 2. The position of the sun and the stars depends on the position on earth, thus earth has to be curved 3. Magellan sailed around Earth 4.
Yuri Gagarin orbited Earth in space 5. Pictures of Earth taken from the Moon impressively demonstrate the shape of Earth 6. The rotation of Earth can be proven with Foucault's pendulum 7.
Astronomical observations show that all the other planets are spheres, it is very likely that the Earth is a sphere too.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.